Oil stove and burner



(No Model.)

R. S. OSBORNE.

OIL STOVE AND BURNER.

Patented Sept. 20,1881.

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UNITED STATES PATENT OFFICE.

ROBERT S. OSBORNE, OF BROOKLYN, NEW YORK.

. OIL STOVE AND, BURNER.

SPECIFICATION forming part of Letters Patent No. 247,396, dated September 20, 1881.

Application filed March 29, 1881. (No model.)

To all whom it may concern Be it known that I, ROBERT S. OSBORNE, a citizen of the United States, residing in the .city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Oil- Stoves and Oil- Burners; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification.

This invention relates to an improvement in oil-stoves and oil-burners in which hydrocarbons are used either for lighting or heating purposes; and its object is to do away with all danger of explosions in the use of such oilburnersby constructingthe same in such amanthatthe oil is never heated to such a degree as to admit of vapors being generated in the oil reservoir, or in any other part in which oil is contained,except in that part ofthe wick-tube which is in immediate proximity to the flame.

The danger arising from the use of hydrocarbons in stoves and other oil-burners,whether for heating or lighting purposes, is due to the fact that the heat from the flame is conducted by the metal of which the stove or article is made to the receptacle in'which the oil is contained, and the oil is thereby heated to such a degree that vapors are generated which will ignite or explode when brought into contact with any flame; but by means of my invention all the surfaces with which the oil comes in contact, except the top of the wick-tube, are kept below that degree of heat at which such vapors are generated, and hence all danger of explosion is averted, and the stove or other apparatus in which hydrocarbons are burned is rendered perfectly safe.

The invention consists in improved means for breaking the metallic connection and the conduction of heat between those parts from which heat is radiated and the parts in which oil is contained, and in the novel construction and combination of parts whereby the objects above mentioned are carried into effect, all of which are hereinafter particularly set forth and described.

In the accompanying drawings Ihave shown my invention applied to an oil-stove; but, as before stated, it is also applicable to other articles or apparatus in which hydrocarbons are burned either for lighting or heating purposes.

In the said drawings, Figure 1 represents a vertical section, on the line was, Fig. 2, of an oil-stove with my improvements; and Fig.2 is a plan view of the lower portion of the same, the upper portion being removed.

Similar letters of reference indicate the same parts in both the figures.

A may represent the base ofthe stove, which may be of convenient form and dimensions to receive and hold the oil-reservoir F, and to support the upper portion, B, from which the heat is radiated, and is provided with suitable air-inlets, through which atmospheric air is admitted to support combustion. The upper portion, B, may be of cylindrical orother suitable form, and contains and supports the ordinary cone, a, and chimney b.

D is an ordinary perforated plate, to divide the air-currents in the usual manner.

F represents the oilreservoir, which is composed of a coil of metal pipe, which may either be a spiral coil, as shown in the drawings, or a fiat coil. The oil is introduced into the upper or outer end of the coil, which is provided with a suitable cap, 0, and the lower or inner end of the pipe forming the coil is bent upward, and extendsvertically to support the wick-tube d d. The oil-reservoir F may be surrounded by a cylindrical casing, but this is not essential, and is not shown in the drawings.

At a short distance from the extreme upper end ofthe wick-tube (I, which is in immediate contact with the flame, the said tube is divided, and a ring, 0, of some suitable material which possesses the property of being a non-conductor of heat, is interposed between the upper length, d, and the lower length, d", of the wicktube, for the purpose of stopping the conduction of heat downward. The coil F also may be divided into two or more lengths and a ring of non-conducting material interposed between the lengths, as at sin Fig. 1, to prevent the conduction of heat along the coil. P is a box, of metal or other suitable material, into which the lower end of the Wick-tube passes througha perforation provided in the top of the box. This box is filled with disintegrated non-conducting material, to prevent the heat from the lower portion of the wicktube from passing to the coil F. Atits under side is a tubular projection, f, by means of which itis fitted to that end of the pipe F which passes up the center of the coil, and between this tube f and the said end of the pipe F is interposed another ring, h, of non-conducting material, to prevent the conduction of heat from the box P to the pipe F. A ring or'stuffing box, m, is interposed to prevent contact between the wick-tube and the top of the box 1?.

n represents the wick, which may be of any of the ordinary kinds.

The non-conducting materials above mentioned may he of any of the well-known kinds suitable for the purposesuch as hard rubber, the various preparationsof asbestus, and the like.

S S are the supports or brackets upon which the upper and heated portion, 13, ot' the stove rests, the lower rim of the same fitting into the grooves it. These supports are made partly or wholly ot' non-conducting material, and are rigidly secured at their lower ends to the base A.

Fromthe above description it will be readily seen that the surfaces with which the oil comes in contact are all insulated from the heated surfaces, so that the oil is never heated to a degree sufficient to generate dangerous vapors.

What I claim as my invention is-- l. A wick-tube of an oil-stove or oil-burner,

composed of two or more sections or lengths, (l 61, connected by means of a ring, 0, of material which is a nonvconductor of heat, in such manner that the said sections or lengths are prevented from coming in contact with each other, as and for the purposes set forth.

2. The oil-reservoir F, composed of a coil of pipe divided into two or more sections by the interposition of a non-conductor of heat, the lower end ofthe coil being bent upward through the center of the coil to support the wick-tube, substantially as shown and described.

3. The combination, in an oil-stove or oilburner, of an oil-reservoir, F, composed. of a coil of pipe dividedinto two or more sections by the interposition of a non-conductor ofheat, a' box, P, filled with disintegrated non-conconducting material interposed between the oil-reservoirand the wick-tube, and a wicktube composed of two sections, d (1, connected, as described, by ariug, e, of non-conducting material, the Whole being arranged substantially as shown and described, for the purpose of breaking the metallic connection and conduction of heat at various points.

ROBERT S. OSBORNE.

Witnesses:

M. H. TOPPING, JOHN S. THORNTON. 

